The only reason I found out was because she had a HUGE obnoxious gorgeous flower arrangement delivered to her at work and I asked her what they were for and she started crying and then told me they were his apology flowers - that he put on her credit card!
She doesn't want to divorce because their kids but I'm encouraging her to think about protecting herself and I sent her some attorney recommendation links. He's never had a decent job it's majority her income so divorcing isn't even that favorable for her now afaik. Sad situation.